Give yourself the ability to expand your creativity with the PA033 Lens Backplate for PA021 Samsung S23 Ultra Phone Cage from Neewer. When attached to your PA021 cage via the included hardware, you gain a 17mm threaded mount and an M mount. The 17mm mount can be used with optional lenses, while the M mount can accommodate an optional 67mm lens filter adapter. Able to stand up to regular use, the backplate is made from a lightweight, rust and scratch-resistant black anodized aluminum alloy materials.